High-speed train gearbox lubricating oil cooling device

The invention relates to a high-speed train gearbox lubricating oil cooling device. The high-speed train gearbox lubricating oil cooling device comprises a gear transmission device, a heat exchanger,a circulating oil gas pump, a controller, a micro motor and a sensor, wherein the gear transmission device is driven by the gear engagement of a pair of gears or a plurality of pairs of gears with different sizes arranged in the gear box; one side of the gear box is provided with an oil gas inlet; the other side of the gear box is provided with an oil gas outlet; a lubricating oil outside circulation path is formed between the oil gas inlet and the oil gas outlet through a circulation hose; the heat exchanger and the circulating oil gas pump are sequentially connected to the circulation hose;and the micro motor controlled by the controller drives the circulating oil gas pump to work.; According to the device, a high temperature oil gas circulation pipeline is connected to the outside of the gear transmission devic